This association consists of an executive committee which includes four officers. In addition to the executive committee, each graduating class is represented by two at-large members. The obligation of an at-large member consist of fulfilling a two year term, attending three association meetings per year, and serving as a liaison between the association, classmates, and the school. At-large members assist in planning their class reunions as well. The association conducts three meetings per year and are open to all alumni. Current school programs and initiatives are discussed at the association meetings, as well as a time set aside to ask questions and make suggestions. The association has a luncheon at the Montgomery Country Club and the Wynlakes Country Club to honor local alumni. Twice a year the Association provides a breakfast at school for current alumni families whose children attend Trinity. The association was pleased to start these new traditions for the alumni of Trinity in the hopes that they will continue for the years to come.

The Trinity Presbyterian School Alumni Association's mission statement is as follows: Trinity Presbyterian School has been blessed by the abilities, talents, and accomplishments of its students since 1970. Understanding that alumni are among our most valued assets, the Trinity Presbyterian School Alumni Association (TPSAA) exists to promote the Trinity Presbyterian School community, to connect former students with one another and their school, to encourage alumni involvement in school activities, to foster additional educational opportunities for current students, to provide a venue in which to celebrate alumni accomplishments, and to strengthen the bonds between alumni and current students, faculty, and staff. As we look to build upon the Trinity legacy, the Association hopes to inspire lifelong interest, loyalty, and the continued pursuit of excellence in teaching and learning. As we look to build upon the Trinity legacy, the Association hopes to inspire lifelong interest, loyalty, and the continued pursuit of excellence in teaching and learning.